The Journal of Korean Physical Therapy Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2287-156X   pISSN 1229-0475

The Journal of Korean Physical Therapy Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2287-156X pISSN 1229-0475

Table. 3.

Table. 3.

The comparison of trunk muscle EMG according to plank exercise at angles between ground and the humerus (unit: %RVC)

plank H-plank t p
80° RA 133.5±57.49 179.61±86.48 -2.664 0.010*
EO 111.63±25.36 176.59±105.51 -3.592 0.001*
TrA·IO 125.42±35.64 332.1±429.57 -2.877 0.005*

90° RA 118.45±58.44 161.49±77.93 -2.651 0.010*
EO 115.40±34.84 171.90±118.84 -2.737 0.008*
TrA·IO 110.79±39.15 308.14±449.97 -2.622 0.011*

100° RA 208.62±187.32 227.84±141.56 -0.491 0.625
EO 129.53±48.52 193.72±130.08 -2.774 0.007*
TrA·IO 169.08±89.20 339.67±457.12 -2.198 0.034*

110° RA 249.93±240.78 257.66±151.12 -0.163 0.871
EO 146.89±49.98 205.9±115.75 -2.808 0.006*
TrA·IO 205.81±98.93 373.72±436.57 0.068 0.030*

Mean±SD.

RA: rectus abdominis, EO: external oblique, IO: internal oblique, TrA: transverse abdominis, H-plank: hollowing plank.

*Significant difference (p<0.05).

J Kor Phys Ther 2020;32:94-100 https://doi.org/10.18857/jkpt.2020.32.2.94
© 2020 J Kor Phys Ther